It appears to be something on my main system causing this memory climb as importing my library into the new VM based system only causes a minimal change (lower?) in memory:
Code:
16468 python2 /usr/bin/calibre-parallel --pipe-worker from calibre.utils.ipc.pool import run_main, worker_main; run_main(worker_main)
249796 python2 /usr/bin/calibre
Question, are python libraries shared between running applications?